Holder for divisional propellent charges



Nov." 7, 1939.

E. J. M CORMICK HOLDER FOR DIVISIONAL PROPELLENT CHARGES Filed March 2,1938 lnve'l-Ltur E dwar d J M:Eur'mi ck Att UT'TLEy oFFir.

HOLDER FOR DIVISIONAL PROPELLENT CHARGES Edward J. McCormick, Spencer,N. 0. Application March 2, 1938, Serial No. 193,540 1 Claim. (01.102-26) (Granted under the act of March 3, 1883, as amended April 30,1928; 3'70 0. G. 757) The invention described herein may be manu- Thepellent charge [3 consists of a pluralfactured and used by or for theGovernment ty of thin flexible sheets l3a each havin a for governmentalpurposes, without the payment clrculal Opening fo e e vi g the tube 8.to me f any royalty thereon Each sheet is also provided with a slit l5ex- 5 This invention relates to a holder for divitending from t eOpening IE to the edge and 5 sional propellent charges and similarlyarranged enabling the e t to be readily applied to and units removedfrom the tube. In accordance with the In a round of ammunition fortrench mor- Zone t Of firing p y d w th mortars tars it is customary toissue the round t a variable quantity of propellent'charge is emmaximumpropellent charge and then to remove y d und r various circumstances.The round 10 a portion f the Charge as occasion requires of ammunitionis assembled with the maximum purpose of this invention is to provide acharge and a predetermined number of sheets simple form of propellantholder which removed as Occasion equires. will maintain the charge inits proper place to The Sheets constituting the Charge a e main- ,5insure ignition and which may be readily moved tained against the finsor a corresponding abut- 15 when it is desired to remove a portion f thement and also in line with the vents l2 by means charge of a holder itwhich frictionally and resiliently A further object is to so form theholder that a m the tube and which ay be ma u l y moved it will notbecome detached from the projectile away from the ar e to faci itateremoval of and remain in the mortar and that it will offer eerteih 0fthe S s and then restored to a 20 a minimum of resistance to flight ofthe proholdlng Position jectna The holder it comprises an annular metalTo these and other ends, the invention conresilient band we and inwardlyP j g C rsists in the construction, arrangement and oomcumferentiauySpaced p g fing rs I61) which bination of elements described hereinafterand may be conveniently punched out Of the metal 25 pointed out in theclaim forming t of t i of the band. When mounted on the tube 8 thespecjfication fingers engage the tube and the rear edge of the Apractical embodiment of the invention is ilband engages the front Sheet13a of the p lustrated in the accompanying drawing, wherein: llellehtCharge- Fig. 1 is a longitudinal sectional view of the I eleiml 30 rearend of a projectile equipped with the im- In a projectile 0f the yp v nga tubular proved charge holder; member provided to receive a propellentcharge Fig 2 is section on t line 2.4 cf 3; in surrounding relation andin engagement with Fig. 3 is a view in side elevation of the holder; anabutment thereon, a holder d pt t be Fig. 4 is a plan View of thepropellent charge. interposed between the y of the projectile 35Referring to the drawing by characters of refend abutment to retain thep p Charge erence there is shown a portion of a projectile in engagementWith the abutment Comprising a of the muzzle loading type adapted to befired metal resilient circular band provided with a from a trenchmortar. The projectile includes plurality eilellmferehtielly Spacedfingers eX- a body 5 formed with a tapered tail 6 ending in tendinginwardly from said band, the inner ends 40 a reduced stem 1. A tube 8threaded on the of said fingers defi g a circle of substantially stem isprovided on its rear portion with a plusmaller diameter than thediameter of said band rality of vanes or fins 9 which serve the usualand of such diameter relative to the tubular purpose of stabilizing theprojectile while in member that said fingers are adapted toresiliflight. ently engage the outside of the latter; whereby 45 Acartridge ll! of the shot-gun type is carried the holder is adapted toengage the outside of in the rear part of the tube and includes a primerthe tubular member in contacting relation with H which is fired when itstrikes a pin at the the end of the propellent charge remote from bottomof the mortar. The tube 8 is provided the abutment with sufficientfriction to hold prowith a plurality of staggered vents l2 forconpellent charges of difierent relative lengths axi- 50 ducting theflame from the cartridge to a proally of the tubular member inengagement with pellent charge it which is disposed on the outer saidabutment. side of the tube and forwardly of the fins 9. EDWARD J.MCCORMICK.

